[NET]: add+use poison defines

Add and use poison defines in net/.

Signed-off-by: Randy Dunlap <rdunlap@xenotime.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/poison.h b/include/linux/poison.h
index a5347c0..05d7d0f 100644
--- a/include/linux/poison.h
+++ b/include/linux/poison.h
@@ -45,6 +45,10 @@
 /********** drivers/atm/ **********/
 #define ATM_POISON_FREE		0x12
 
+/********** net/ **********/
+#define NEIGHBOR_DEAD		0xdeadbeef
+#define NETFILTER_LINK_POISON	0xdead57ac
+
 /********** kernel/mutexes **********/
 #define MUTEX_DEBUG_INIT	0x11
 #define MUTEX_DEBUG_FREE	0x22